前期准备

• jdk8+
  www.oracle.com/technetwork…
  
• Elasticsearch7
  www.oracle.com/technetwork…
  wget下载： wget artifacts.elastic.co/downloads/e…

安装es

1. tar -zxvf elasticsearch-7.3.1-linux-x86_64.tar.gz

2. cd elasticsearch-7.3.1/config

3. vim elasticsearch.yml
   

   #集群名称
   cluster.name: my-application
   #节点名称
   node.name: node-1 
   #是否有资格成为主节点，不是指当前节点就是主节点 可以理解为候选人
   node.master: true
   #是否存储索引数据
   node.data: true
   #分片数
   index.number_of_shards: 5
   #副本数量
   index.number_of_replicas: 1
   #配置文件存储路径
   path.conf: /path/to/conf
   #索引数据的存储路径
   path.data: /path/to/data
   #临时文件存储路径
   path.work: /path/to/work
   #日志文件存储路径
   path.logs: /path/to/logs
   #插件存储路径
   path.plugins: /path/to/plugins
   #不进行内存交换
   bootstrap.mlockall: true
   #linux or unix使用mlockall防止es内存被交换出去
   bootstrap.memory_lock: true 
   #对外开发地址
   network.host: 0.0.0.0 
   #对外开放端口
   http.port: 9200 
   #引导启动集群的主节点
   cluster.initial_master_nodes: ["node-1"] 
   gateway.recover_after_nodes: 1 
   
   

4. useradd -d /usr/es/ -u es

5. chown -R es /usr/elasticsearch-7.3.1

6. #配置内存锁
   echo "  " >> /etc/security/limits.conf
   echo "#elasticsearch memlock dinghe add 20170828 " >> /etc/security/limits.conf
   echo "elasticsearch soft memlock unlimited" >> /etc/security/limits.conf
   echo "elasticsearch hard memlock unlimited" >> /etc/security/limits.conf
   #配置文件描述符
   echo "  " >> /etc/security/limits.conf
   echo "#limit dinghe add 20170828 " >> /etc/security/limits.conf
   echo "* soft nofile 65536" >> /etc/security/limits.conf
   echo "* hard nofile 65536" >> /etc/security/limits.conf
   #map_counter
   echo "#elasticsearch inti dinghe add 20170828" >> /etc/sysctl.conf
   echo "vm.max_map_count = 262144" >> /etc/sysctl.conf
   
   

7. cd /usr/elasticsearch-7.3.1/bin

8. ./elasticsearch 启动